Aley Keprt wrote: > Really? > It's called "Aley's" instead of "Alternative". I don't know > who the f. wrote the worng name into the database.
Heh - they should have known that there are no other 'A' words! ;-) > And I don't know why it has undersized SAD. Isn't the file > corrupted? My mistake - the image I got was SADv2, so it was just smaller because it was compressed (it's confusing them having the same file extension!). If the program could handle gzipped files it would have just worked when I first tried it. > > - disk format understanding for better equivalence checking > > In other words it must read/unpack each file into memory, and > then test the checksum. It needs a bit more of an abstract comparison than that... DSK and SDF files (say) for 80 track disks are very different internally, so the checksum would need to include the basic disk geometry as well as the data in each sector, and not just the raw data from an uncompressed file. The SimCoupé source uses a CDisk abstraction to treat them all the same - GoodSAMC just needs to do the same for the comparisons. > You never know what is official. It contains tens of > "spectrum games collection" or "demos collection" images. > That's why I wrote it is a nonsense to make database of > diskettes. Some will have come from a particular source, and those could be considered the 'official' versions. So the official MNEMOtech demos should be the ones on Andrew's web-site, etc. Hopefully most disks would be covered by the above, as someone will have had to put the disk together originally. It'll be more difficult if the original source is no longer available, but hopefully there will still be a common version of each. NVG probably has a lot of misc stuff that could be considered official, as many of us download from there... > I think we should build a database of ROMs instead. (real > roms - MGT Sam Basic version 1,2,3..., SamCo ROM, etc.) That should be a lot more straight-forward to manage, as long as there aren't copyright problems with em. Does anyone have a collection of them already? (aren't there only be half a dozen at most?). Si
